new program to list dhcpd.leases

Luis Fernando Lacayo lflacayo at cps.k12.il.us
Mon Jul 28 13:53:06 UTC 2008


Christian, 

Thank you for taking the time to write,  We can we get the manufacturer
list?

Luis

On Sat, 2008-07-26 at 09:43 +0200, Christian Hammers wrote:

> Hello
> 
> As I sometimes want to find out which leases are currently active on my
> DHCP server or which IP a specific MAC got the last time, I wrote a little
> script to parse dhcpd.leases. It even prints the oui.txt manufacturer.
> 
> Would be nice to see anything like this in the official DHCP distribution.
> 
> If someone is interested, the script is public domain and written in pure
> Perl5. It's available from http://www.lathspell.de/linux/dhcp/
> 
> bye,
> 
> -christian-
> 
> $ dhcp-lease-list --last
> #      MAC            IP             valid until           manufactorer
> 00:02:b3:96:4d:4f  192.168.230.56  2007-10-25 14:04:30  Intel Corporation
> 00:08:02:62:e8:b0  192.168.230.75  2008-02-25 16:24:26  Compaq Computer Corporation
> 00:0b:5d:96:bf:2f  192.168.230.57  2008-01-25 13:07:19  FUJITSU LIMITED
> 00:0b:82:01:90:ee  192.168.230.71  2007-10-25 07:35:50  Grandstream Networks, Inc.
> 00:0c:29:7b:4d:b9  192.168.230.59  2007-08-23 07:46:55  VMware, Inc.
> 
> $ dhcp-lease-list --help
> Prints active DHCP leases.
> 
> Usage: ./dhcp-lease-list [options]
>  --help      shows this help
>  --parsable  machine readable output with full dates
>  --last      prints the last (even if end<now) entry for every MAC
>  --all       prints all entries i.e. more than one per MAC
> 
> 

-- 
Luis Fernando Lacayo
Chicago Public Schools
Senior Unix Administrator
ITS/ UNIX Infrastructure
Office: 773-553-3835
Cell: 773-203-4493
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